remcos | 3321e80c890fcc1823add8a50889005390a73885f84a3445486771a9d1481cad

Analysis

max time kernel
300s
max time network
302s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260911-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
11/11/2026, 04:32

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General

Target
1.exe
Size 645KB
Sample261111-e5z7eatx5q
SHA256 3321e80c890fcc1823add8a50889005390a73885f84a3445486771a9d1481cad
MD5 1841d01f557308299e86d6199f9f305e
SHA1 3c87654c7a25088994aed5519da5658c73b8d8fd
SHA512 1417f58bb9276c5800ab3425726e825c10b295a46f904a56e97681a641ada1ee404893949928c89d8e571ac182e26c01c058c58ee19ff22453d30802ae7be53e
SSDEEP 12288:TIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:U5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T186E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03D70E9B2F276A16F3AB26
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

au88 discovery remcos persistence rat suricata

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

au88

b52club.bio:443
b52club.bio:8080
member.betvice.co:443
member.betvice.co:8080
nmk.yosusai.in:443
nmk.yosusai.in:8080
xx8.loans:443
xx8.loans:8080
bigslot855.vip:443
bigslot855.vip:8080
member.noboncos.co:443
member.noboncos.co:8080
digitalconsulting.techvmc.co.in:443
digitalconsulting.techvmc.co.in:8080
tga95.games:443
tga95.games:8080
di.beckham.in:443
di.beckham.in:8080
88clb.limited:443
88clb.limited:8080

Attributes

audio_folder
au88
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
App.exe
copy_folder
au88
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-C3I9OG
screenshot_crypt
false
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suricata alert: REMCOS RAT Malware Outbound C2 Communication 60 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
40	1736	App.exe
40	1736	App.exe
49	1736	App.exe
49	1736	App.exe
41	1736	App.exe
41	1736	App.exe
36	1736	App.exe
36	1736	App.exe
48	1736	App.exe
48	1736	App.exe
47	1736	App.exe
47	1736	App.exe
12	1736	App.exe
12	1736	App.exe
14	1736	App.exe
14	1736	App.exe
29	1736	App.exe
29	1736	App.exe
35	1736	App.exe
35	1736	App.exe
30	1736	App.exe
30	1736	App.exe
21	1736	App.exe
21	1736	App.exe
26	1736	App.exe
26	1736	App.exe
9	1736	App.exe
9	1736	App.exe
20	1736	App.exe
20	1736	App.exe
27	1736	App.exe
27	1736	App.exe
15	1736	App.exe
15	1736	App.exe
46	1736	App.exe
46	1736	App.exe
32	1736	App.exe
32	1736	App.exe
42	1736	App.exe
42	1736	App.exe
6	1736	App.exe
6	1736	App.exe
43	1736	App.exe
43	1736	App.exe
39	1736	App.exe
39	1736	App.exe
11	1736	App.exe
11	1736	App.exe
24	1736	App.exe
24	1736	App.exe
45	1736	App.exe
45	1736	App.exe
23	1736	App.exe
23	1736	App.exe
33	1736	App.exe
33	1736	App.exe
38	1736	App.exe
38	1736	App.exe
44	1736	App.exe
44	1736	App.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000\Control Panel\International\Geo\Nation	1.exe

Executes dropped EXE 1 IoCs

pid	Process
1736	App.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-C3I9OG = "\"C:\\ProgramData\\au88\\App.exe\""	App.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-C3I9OG = "\"C:\\ProgramData\\au88\\App.exe\""	App.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3202520547-175870679-441661622-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-C3I9OG = "\"C:\\ProgramData\\au88\\App.exe\""	1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-C3I9OG = "\"C:\\ProgramData\\au88\\App.exe\""	1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	App.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	App.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2916	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2916	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1736	App.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1736	App.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	App.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 1736	1960	1.exe	83

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1960
- C:\ProgramData\au88\App.exe
  "C:\ProgramData\au88\App.exe"
  2⤵
  - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
  - Executes dropped EXE
  - Adds Run key to start application
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1736

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3c0 0x300
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2916

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

App.exe

Path C:\ProgramData\au88\App.exe
Size 645KB
SHA256 3321e80c890fcc1823add8a50889005390a73885f84a3445486771a9d1481cad
MD5 1841d01f557308299e86d6199f9f305e
SHA1 3c87654c7a25088994aed5519da5658c73b8d8fd
SHA512 1417f58bb9276c5800ab3425726e825c10b295a46f904a56e97681a641ada1ee404893949928c89d8e571ac182e26c01c058c58ee19ff22453d30802ae7be53e
SSDEEP 12288:TIfxS5XkH4nOqwitNfuquCwgs69gy3V5v+BNyo3PoL5aDz:U5GXkH4nnwitNfuq9wgs3y3V5vgNyo3E
TLSH
T186E46D59A39402F8D0B7C135C982953BE7B2BC065571472F03D70E9B2F276A16F3AB26
MD5 SHA1 SHA512 SSDEEP TLSH

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logs.dat

Path C:\ProgramData\remcos\logs.dat
Size 208B
SHA256 58b05d9c8c30ffea85e3e61b4b109ecd4f3d0b3426f814b987a4f139bae5e99b
MD5 422d9f162da9881588b25698d10d5db8
SHA1 c8298ff3741670a45afa096aa695489b01513f31
SHA512 4d47fcb261dee25f371343184965e6b0f122a76782ed1ccaa64c49631598fee19d62db1c21ee3a3859d7bc37ac1811b39060c36411d5550bc9c0eea0d90ef24e
TLSH
T100D0121E3BE1105BBA63D25B91F700262D35FAE10038885D15D1574C14F9906790074F
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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